I don't know any statistics, but I have been dealing with a similar decision (PCO vs. Nova) and after a lot of advice telling me how great of a school PCO is, I have decided to go to Nova...Like everyone has said, it is a personal decision about where you will be the most comfortable and the most successful. Personally, I plan to study really hard for the boards regardless of where I go. I am from Pennsylvania, so PCO was the expected choice for me, but when I sat down and compared my interview experiences the choice was obvious (in Nova's favor). I was very impressed with the faculty that I met at Nova and the students all seemed very happy with their school. The facilities were really nice and it was in a great location. I personally did not apply to SCO, mostly because I was not interested in living in Memphis for four years, but from what people have posted it sounds like a great school. Good luck with your decision, let me know if you have any questions.